System Card A003; Power Supply; Leds; Connectors - Kemppi FASTMIG X 450 Service Manual

8. SYSTEM CARD A003

System card in FastMig X 450 is to make possible MMA welding without separate wire feed unit
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System card is connected to power source via CAN bus with connector X1
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8.1. Power supply

Connector X6 is the only one which is connected to this card. There are +50DC bus and CAN bus in this connector. DC-
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DC converter generates +5Vdc in this card by transformer T2. Regulator N3 generates 3,3Vdc.

8.2. Leds

8.3. Connectors

Kemppi OY
SERVICE MANUAL
FASTMIG X
Led Description
H1 Blinking when there is another pro-
cessor or system device connected in
the CAN bus
H5 Aux. voltage + 5 Vdc
H6 Aux. voltage 3,3 Vdc
Connector Description
X6:1 System bus +50V
X6:2 System bus DATA
X6:3 System bus GND
X7 JTAG (RD usage)
X8 Memory (RD usage)
X9 Chassis Ground
17 (37)